149492988287 has 4 divisors (see below), whose sum is σ = 150815935200. Its totient is φ = 148170041376.

The previous prime is 149492988283. The next prime is 149492988301. The reversal of 149492988287 is 782889294941.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 149492988287 - 2² = 149492988283 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149492988287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149492988283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661473287 + ... + 661473512.

It is an arithmetic number, because the mean of its divisors is an integer number (37703983800).

Almost surely, 2^149492988287 is an apocalyptic number.

149492988287 is a deficient number, since it is larger than the sum of its proper divisors (1322946913).

149492988287 is a wasteful number, since it uses less digits than its factorization.

149492988287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322946912.

The product of its digits is 167215104, while the sum is 71.

The spelling of 149492988287 in words is "one hundred forty-nine billion, four hundred ninety-two million, nine hundred eighty-eight thousand, two hundred eighty-seven".